Blue Bonnet has taken to wedging herself partly under a rock and I'm afraid she'll get stuck.I had one that used to like to wedge himself under the rocks and turn himself upside down! lol They do the funniest things.

My betta's fins were curled and so I started using softer water. I changed pretty recently, but it does seem to be helping.
However, I don't think its really a big problem. It just doesn't look quite as nice (as far as I know, at least. I'm no expert.)